Window-screen.



K. F. BENKO.

WINDOW SCREEN.

n l IN1/Afrox? fda,

K. F. .BENK0. WINDOW SCREEN. `APPLICATION FILED AUG-301 I9I5.

Patented May 23,1916.

2 SHEETS-SHEET 2.

. KALMAN F. BENKO, OF SKYRACU'SE, NEW YORK.

WINDOW-SCREEN.

Application tiled August 30, 1915. Serial No. 48,020.

- To all whom it may concern.'

- Onondaga', in the State of New York,

and screen7 taken on line 2%2,

Be it known that I, KALMAN F. BENKO, a citizen of the United States of America, and resident of Syracuse, in the county of have invented new and useful Improvements in Window-Screens, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to certain improvements in window screens of the roller cur tain type, the means screen.

It is proposed to use fine wire or cloth screen specially treated to render it weatherproof, either of which would be more or less stiffA and difficult to wind upon rollers of relatively small diameter, and one of the main objects of my present invention is to enable such screens to be wound more or less compactly upon such rollers.

Another object is to maintain the screen in a substantially fiat plane against buckling when adjusted for use, and also to prevent stretching of the edges thereof. Other objects relating to specific parts of the screen and its supporting and operating means will be brought outvin the following description.

In the drawings, Figure l is a frontele- Vation, partly in section, of a window screen embodying the various features of my invention and window frame in which'it is mounted. Fig. 2 is a transverse vertical sectional View through the same window frame Fig. l.--Fig. 8 is an enlarged horizontalsectional View, partly broken away, and taken Fig. l. Fig. 4 is an enlarged front e`levation, partly broken away, of the lower righthand corner of the screen, particularly the manner of applying the binding strips and operatin tapes. Figs. 5 and 6 are detail sectional views, taken, respectively, on `lines 5-5, and 6-6, Fig 4. Fig. 7 is a sectional view taken on line 7-7, Fig. 1. Fig. 8 is a front elevation, partly broken away and partly in section, of a win* dow frame and screen, showing a slightly modified form of operating means in which the curtain is drawn upwardly from the botfor supporting and operating the tom instead of downwardly from the top,

Specification of Letters Patent.

andV refers vmore particularly to on line 3-3L showing more length of more flexible Patented May 23, 1916.

as shown in the previous gures. Fig. 9 is an enlarged transverse sectional view through one of the guides for the adjacent edge of the screen shown in Fig. 8.

As illustrated in Figs.' l to 7, inclusive,

the operating means for the screen -as -1- 'is built into the frame A of the window in such manner as to permit the screen to be adjusted vertically from the top downwardly across the outsideof the window and in close proximity to the outermost sash,

and compr1ses an upper roller -2l anda lower roller -3-V located, respectively, in suitable housings in the top` and bottom portions ofthe frame A above and below the window sash.

The upper roller 2- is adapted to be driven in one direction for winding the screen -lthereon by means of a spring motor -4` through the medium of intermeshing sets of gears -5- and -6- of such ratio as to impart a relatively greater speed of rotation to the roller -2- than that of the motor shaft.

The lower roller *3- is adapted to be operated by hand for drawing the curtain down across the window opening against nected to oneend of a pull cable or tape `10` extending outwardly through an opening -11 in the inner side of the lower housing and is provided with apertures -12- for engagaing-with4 a suitable catch -13` alsoon the inner face of the housing so that the cable may be operated from the room to which the window leads.

The screen lis of suflicient size and v area to cover the window opening and is preferably made of fine mesh, flexible copper wire or Iequivalent material, except that its upper end consists of a relatively short cloth webbing or cloth screen -1- which is attached at its upper end directly to the upper cylindrical roller -2-, whileits lower end is attached by a flexible binding tape 14- (Fig. 7 to the upper end of the woven wire screen to the upper end of the screen by means ofv a flexible tape in the manner shown is to l prevent buckling of the wire screen upon the roller during its initial winding thereon,

and also .to permit the wire screen to be wound smoothly and compactly upon a rewinding roller of Arelatively small diameter.

It will be observed upon referenceto Fig. 3 that the screen -.'l-` extends from side to side of and between the sides of the window frame, the opposite upright edges thereof being guided inver-tical channels -15- in the outersash stops and-are covered and protected by tape openings -16- stitched or otherwise secured thereto and running the entire length of the screen to prevent stretching of the edges of the wire fabric and also to enable'such fabric to be wound and unwound upon and from the roller 2f with greater uniformity and smoothness, said binding strips also serving to protect the edges of the wire against undue wear intraveling along the ways or channels -15-. The lower edge of the .screen is rmly vclamped between a pair of reinforcing bars 17'- of wood or equivalent sti material',

' as shown more clearly in Figs. 4 and 5, said its downward movement, thus serving toexv bars bein co-extensive in length with the distance be 15T- and constituting a stiffening bar for retaining this portion of the screen in a substantially yflat plane and is adapted to lie closely against the upper face of the window sill when the screenis drawn to the limit of clude flies and other insects. f

The inner section of the bar is somewhatI thicker than the outer section so that its inner face ma. travel in a vertical plane close to that o the outer -face ofthe outermost'sash, so that if the outer sash is lowered for ventilation while the inner sash is close the inner face of the bar -17-` may be lowered into registration withthe outer face of the outermost rail of the outer sash and l'ocked in such position against the action of the retractingspring f1- by en catch -13-, or .if the inner sash is ele- ,frame are suitable ways -15- in which vated, the screen may be drawn to lthe limit of its downward movement with the bar '-1- are retainedV in a substantially flat planeby means of additional stiffening bars -18-of thin sheet metal or e uivalent malterial secured at intervals to t e' outer face ofI the screen transversely thereof and in parallelism with thel lower Abar.' -17--, the

tween the stops and channels.

stiffening bars 18 being relatively narrow so as to roll easily with the screen upon the roller 2. i, A

In order that the strain of the straps -9- may be transmitted to the entire lower edge of the screen the upper ends thereof are attached directly to apertured metal extensions or plates 20- Which in turn are rigidly secured to and between the opposite ends of the bars -17, as shown more clearly in Figs. 4 and 5, .and extend outwardly beyond the edges of the screen to ride in the grooves or channels 15, said plates beingl provided with slotsv -21- in vertical alinement with binding strips i6- for receiving the .adjacent ends'of the tapes -9-, the lower ends of saidtapes being attached to their respectivev sheaves -7-,. -9- are in vertical alinement with the binding strips 16- and any pull upon the tapes -9 will be transmittedto the bars -17 through the medium of the plates --20--`, thus lpreventing stretching of the edges of the screen. v

The screen and its operating means shown in. Fig. 8 is adapted to be applied to window frames of buildings after completion, and

lweather-proof without materially diminishing its exibility, one end of the screen being attached directly to the roller -2-, while its upper end is attached to astiffening bar -17- 4similar to that Apreviously 'deare omitted. The central portion ofthe bar 1.7- is attached to one end of a pull cord or cable 1Q which is passed over a roller or sheave -25- centrally on the head or top ofthe window frame, leaving. the opposite end free -to be operated" by hand from the room to which the window leads.

It, therefore, follows that the tapes.

Secured to the upright side of the window i the tape-bound` edges of the screen-1 ride as the screen is raised and lowered against or with the action of the-` spring motor The operation of my invention lwill now be readily understood upon reference to the foregoingdescription and the accompanying drawings. A i

What I claim is: l 1. In combination with av window frame having upright ways at opposite sides of the window opening, rollers mounted on the frame above and below said opening, a screen curtain movable vertically in said ways and having one end attached to one of the rollers, connections between the other end of the curtain and the other roller, means for operating the last-named roller to unwind the curtain from the first-named roller, and retracting means for said rstnamed roller to re-wind the curtain thereon.

2. In combination with a window frame having upright ways at opposite sides of the window opening, rollers mounted on the frame above and below said opening, a screen curtain movable vertically in said ways and having one end attached to one of the rollers, connections between the free end of the curtain and the other roller, means for rotating the last-na1ned roller to adjust the curtain from the first-named roller, and retracting means for said first-named roller.

3. In combination with a window frame having upright ways at opposite sides of the window opening, rollers mounted on the frame above and below said opening, a screen curtain movable vertically in said ways and having one end attached to one of the rollers, a cross bar secured to the free end of the curtain to hold the latter in a substantially flat plane againstbuckling, motordriven means for operating one of the rollers to re-wind the curtain thereon, connections between said cross bar and the other roller for adjusting the curtain against the action of its re-winding means, and means for rotating the last-named roller.

4. In combination with a window frame, a spring-retracted roller above the opening in the frame, a separate roller below said opening, a screen curtain attached to the upper roller, a cross bar secured to the lower end of the curtain to hold it against buckling, strap connections between the ends of said cross bar and thelower roller or'adjusting the curtain against the action of the retracting spring, and means for rotating the lower roller.

5. In combination with a window frame having upright guide ways at opposite sides of the window opening, a spring-retracted roller mounted on the frame above the opening, a separate roller mounted on the frame below the opening, a screen'curtain having its upper end attached to the upper roller to be wound and unwound thereon and therefrom, binding strips secured to opposite upright edges of the curtain and movable in said ways to protect such edges against stretching and undue wear, a cross bar secured to thelower edge of the curtain and provided with end plates projecting beyond the adjacent binding strips, flexible connections between said plates and the lower roller in approximate alinement with the binding strips, and means operable at will for rotating said lower roller.

6. In combination with a window frame, a roller above the opening in the frame, a separate roller below said opening, a screen curtain having a main body of wire fabric of sufficient area to cover said opening and a relatively short cloth fabric connected thereto and to the upper roller to cause the wire screen to roll more smoothly upon the roller, a cross bar attached to the lower end of the wire screen, connections between the opposite ends of the cross bar and lower roller, means operable at will for rotating the lower roller, and spring-retracted means for the upper roller for re-winding the 'curtain thereon.

In witness whereof I have hereunto set my hand this thirteenth day of August,

KALMAN F. BENKO. Witnesses: y

JOSEPH Moria, M. W. MORGAN. 

